240123434 has 4 divisors (see below), whose sum is σ = 360185154. Its totient is φ = 120061716.

The previous prime is 240123431. The next prime is 240123437. The reversal of 240123434 is 434321042.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (240123431) and next prime (240123437).

It can be written as a sum of positive squares in only one way, i.e., 218005225 + 22118209 = 14765^2 + 4703^2 .

It is not an unprimeable number, because it can be changed into a prime (240123431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60030857 + ... + 60030860.

Almost surely, 2^240123434 is an apocalyptic number.

240123434 is a deficient number, since it is larger than the sum of its proper divisors (120061720).

240123434 is a wasteful number, since it uses less digits than its factorization.

240123434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120061719.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 240123434 is about 15495.9166879536. The cubic root of 240123434 is about 621.5530213029.

Adding to 240123434 its reverse (434321042), we get a palindrome (674444476).

The spelling of 240123434 in words is "two hundred forty million, one hundred twenty-three thousand, four hundred thirty-four".